CPC G03B 21/2073 (2013.01) [G02F 1/0105 (2013.01); G02F 1/0123 (2013.01)] | 12 Claims |
1. A phase modulator comprising:
a phase distribution arithmetic unit configured to:
generate, in a case of a reproduction of a same reproduction image over a plurality of frames or a plurality of subframes by a light phase modulation element, target phase distribution data based on a predetermined phase distribution calculation method, wherein the target phase distribution data is allowed to reproduce the same reproduction image in at least two adjacent frames among the plurality of frames or in at least two adjacent subframes among the plurality of subframes and that changes at least some objective pixels among a plurality of pixels in the light phase modulation element to average an applied voltage to each pixel of the plurality of pixels during a period over the plurality of frames or the plurality of subframes; and
change a phase distribution in the target phase distribution data based on a temporal change in an initial phase in the predetermined phase distribution calculation method.
|